Valve operating means



July 25, 1950 A. MANHARTSBERGER VALVE OPERATING MEANS Filed Dec. so, 1944 I N VEN TOR. /l/e/ Mama/2M@ Patented July 25, 1.956

UNITED s '.rAf'riEs PATENT o FF les r 2,516,131

VALVE OPERATING MEANs Albert Manhartsberger, Blo'omlield, N. J., assigner to SpecialtiesDevelopment Corporation, Bloomiield, N. J., alcorporation of New Jersey .Application December so, 1944, serial No; 570,607

ating member by force Aother than, or separate from, the manual force required to actuate the trigger.

Another object is to put to new use a handle of the above indicated character which has here-- tofore 'only beenprovided with 'trigger means for transmitting manually applied force `for operating a valve member either directly or through amplifying means.

Another object of the invention is 'to provide a valve operating device that is simple and durable in construction, economical to manufacture, and eiective in its operation.

Other and further objects of the invention will be obvious upon an lunderstanding of .the illustrative lembodiment about to be described, or will be indicated in the appended claims, and Various advantages not referred to herein will occur to one skilled in the art upon employment of the invention in practice.

A preferred embodiment of the invention has been chosen for purposes of illustration and .den scription and is shown in the accompanying drawing, forming a part of the specification, wherein:

Figure 1 isa side View, partially in section and partially in elevation, of a valve control means constructed in accordance with the invention, together with a portion of a container associated therewith.

Figure 2 is a diagrammatic side view of a portion of the device somewhat as seen in Figure 1, showing central 'parts in different positions.

Referring to Figure `1, `the device therein 'shown comprises a container I 0. for a uid medium under `pressure such as carbon dioxide, having an outlet neck l2 in which is secured a tapered thread portion I4 of a head I6.

The head l 6 forms a valve chamber 'i8 to which fluid passes from the container I0 through conduits 20 and 2'2 to normally holdin place a valve member 24 against a seat 26. The valve member 24 is also normally held seated by 'a Aspring 23 exn tending therefrom to a safety discharge disc 3U held in place by *an anti-recoil plug 32. The .fluid exits 'from the chamber through a conduit 34 and a conduit t6 to a nipple (not shown) adapted to receive a conduit or hose for conducting the uid to a point of discharge.

The valve member 24 has a protrusion 42 closely tting the conduitd vfor centering the member on its seat, `and adapted for cooperation with a short stem 44 extending through a packing gland 46 and a gland retainer member 48 into the inner space of a hollow handle.

The'handle 50 comprises a central or base superstructure 52 secured to the head I6 as by a dovetail joint 54 and screws 55, and flanked by side closure members or plates 5S detachably sen cured thereto. The central structure 5.2 is .pro-.- vided with a pivot support "58 near its left hand or outer end as shown, a chamber Gil in which the support 53 is disposed, a central lbearing Vbore for a valve operating member or rod S2 in line with the stem IM, bores above and below the rod 6,2 for springs 64, and a forward chamber B6 having an upper forward protrusion 68 and a lower vrear protrusion 1D. The rod 62 carries a rear end cross ,piecelZ connected to one end of each of the springs 64 which are held at the forward ends in the chamber S8 by plugs M l. .A length 15 of the rod 62 is screw threaded thereto for adjustment relative tothe stem llt. L

A trigger 'I8 is made up of a central finger piece 89 and La ,pair of elongated nat plate like lever arms' 82 'flanking the nger piece 89, the rod 62 and the springs 64 and pivoted at their left yor rear end to the pivot support 58, as by a pin im.

At the forward end, enlarged depending por tions 86 of the lever arms 82 flanking the iinger piece are each provided with an aperture 88 in vlateral register with the corresponding aperture ofthe other, which apertures form `a cam or stop surface 90 for rollers 9! disposed in the apern tures 88 rand journaled on a bearing member or sleeve 92 fixed to the rod 62, The latter, in addition to its support at the rear of the sleeve 92 is sup-ported forwardly thereof by an extension 94 of the central superstructure 52.

As better seen in Figure 2, the surfaces Si] of the lever arms 82 extend upwardly over humps 93 into pocket surfaces 91 the latter of which, when the trigger is in its lower position lock the rollers 9| and the rod 62 against the action of the springs 64. When the trigger is raised, the only manual force necessary to operate the same is that force, at substantially right angles to the force of the springs, required to force the rollers 9| out of the'pockets 91 over the 'humps 93, whereupon the' force of' the springs acting through the rollers against the surfaces 90 completes the upward movement of the trigger and advances the rod 62 to operate the stem 44.

A pin 96 forms a brace between the trigger lever arms 82 above the sleeve 92 and is adapted to be engaged by a reset trigger or thumb piece 98 pivoted to the central structure 52 as by a pin and held against the pin 96 by a spring |02 connected between an extension |04 on the plug 14 and a pin |06 in a hollow |08 on the trigger 98. The latter is shielded by the protrusion 68. The lower protrusion shields the trigger 18 and is curved along an arcr I0 about the axis of the pivot pin 84 to closely slidably fit arcorrespondingly curved rear surface of the portions In operation, when the trigger 18 is moved from the position of Figure 1 to the position of Figure 2, the rod 62 is released for movement bythe springs 64 to move the stem 44 for unseating the valve member 24, whereupon the'luid is released from the container l0 to flow through the conduits 20 and 22, the chamber I8 and the conduits 34 and 36 to the point of discharge.

In resetting the trigger 18 to stop the flow, or upon relling the container, the upper trigger or thulnb piece 98 is pushed downwardly against the pin 96, which action moves the lower trigger 18 downwardly about its pivot pin 84, and the cam surface 90 retracts the rod 62 against the force of the springs 64 and reduces the manual force necessary to operate the thumb piece.

From the foregoing description, it is apparent that a valve operating means has been provided which reduces the manual eiort required in releasing powerful forces quickly, and increases the range of pressures adapted for quick manual release. The invention provides for eiecting initial opening of the valve in a facile manner, whereafter full opening of the valve is readily effected with a minimum of effort. The device of the invention is simple, rugged, and durable, and is an improvement generally in its field of service.

As various changes may be made in the form, construction and arrangement of the parts herein, without departing from the spirit and scope of the invention and without sacricing any of its advantages, it is to be understood that all matter herein is to be interpreted as illustrative and not in any limiting sense.

It is also to be understood that the following claims are intended to cover all the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.

I claim:

1. A discharge head comprising a housing including a valve chamber having an outlet, a hollow member connected to said head, a valve memin said chamber normally seated to close said chamber outlet, a stem extending between said chamber and the interior of said hollow member providing for unseating said valve member, a rod in said hollow member in line with said stem, spring means in said hollow member con-v nected thereto and to. said rod for moving the latter to actuate said stem to unseat saidvalve member, an elongated cam pivotally mounted in said hollow member near the outer end of the latter and extending along said Vrod and formed with a forward cam portion normally restraining said rod from operation by said spring means and mcvable transversely ci the rod forv releas- 4 ing the same, and a second trigger pivoted to said hollow member and spring biased against said first trigger adjacent to said cam portion for moving said rod and said first trigger to normal position.

2. A discharge head comprising a housing including a valve chamber, having a valve seat, and va handle portion extending laterally from said housing; a valve member normally seated on said A valve seat; a rod slidably mounted on said handle portion for effecting unseating of said valve member; a spring connected to said handle portion and said rod for moving said rod to effect unseating of said valve member; a trigger pivotally mounted on said handle portion for transverse movement with respect to said rod, said trigger having a cam portion constructed and arranged to normally restrain said rod from operation by said spring and, upon transverse movement of said trigger, to release said rod for operation by said spring to eiect unseating of said valve member; a second trigger pivotally mounted on said handle portion for moving said first trigger to normal position and thereby move said rod in opposition to said spring out of valve unseating position; and a spring for urging said second trigger into engagement with said first trigger.

3. A discharge head comprising a housing including a valve chamber, having a valve seat, and a handle portion extending laterally from said housing; a valve member normally seated on said valve seat; a rod slidably mounted on said handle portion for effecting unseating of said valve member; a spring connected to said handle portion and said rod for moving said rod to effect unseating of said valve member; a trigger pivotally mounted on said handle portion for transverse movement with respect to said rod, said trigger having a cam portion constructed and arranged to normally restrain said rod from operation by said spring and, upon transverse movement of said trigger, to release said rod for operation'by said spring to effect unseating of said valve member; and a second trigger pivotally mounted on said handle portion for moving said rst trigger to normal position and thereby move said rod in opposition to said spring out of valve unse-ating position 4. A discharge head comprising a housing including a valve chamber, having a valve seat, and a handle portion extending laterally from said housing; a valve member normally seated on said valve seat; a rod slidably mounted on said handle portion for effecting unseating of said valve member; a spring connected to said handle portion and said rod for moving said rod to effect unseating of said'valve member; and a pair of opposed triggers pivotally mounted on said handle portion for transverse movement with respect to said rod, one of said triggers having a cam portion and constructed and arranged to normally restrain said rod from operation by said spring and, upon transverse movement of said trigger into operated position, to release said rod for operation by said spring to effect unseating of said valve member, and the other of said triggers being operable to move said aforementioned trigger from its operated position to its normal position.

. on said valve seat; a rod slidably mounted on said handle portion for effecting unseating of said valve member; a cam follower on said rod; a spring connected to said handle portion and-said rod for moving said rod to effect unseating of said valve member; and a trigger pivotally mounted on said handle portion for transverse movement with respect to said rod, said trigger having a cam slot for reception of said cam follower and constructed and arranged to normally restrain said rod from operation by said spring and, upon transverse movement of said trigger, to release said rod for operation by said spring to effect unseating of said valve member.

6. A discharge head comprising a housing including a valve chamber, having a valve seat, and a handle portion extending laterally from said housing; a valve member normally seated on said valve seat; a rod slidably mounted on said handle portion for effecting unseating of said valve member; a spring connected to said handle portion and said rod for moving said rod to effect unseating of said valve member; and a trigger pivotally mounted on said handle portion for transverse movement With respect to said rod, said trigger having a cam portion constructed and arranged to normally restrain said rod from 6 operation by said spring and, upon transverse movement of said trigger, to release said rod for operation by said spring to effect unseating of said valve member.

ALBERT MANHARTSBERGER.

REFERENCES CITED The following references are of record in the file of this patent: 

